7. Which subsets of the real number system does -84/2 belongs?A.Rational and Irrational.B.Rational, Integer and Whole Number.C.Rational, Integer, Whole Number and Counting.D.Number Rational and Integer
- 84/2 can be reduced to - 42. Therefore , -42 is a rational number as it can be expressed as a fraction. It is also an integer . Integers are counting numbers but also includes negative values.
Therefore, -42 is a rational number and an integer.
